Study the given heating curve of substance
X carefully and select the correct statement.
1
6.
4
373
т
Temperature (K)
2731
3
02
R
Р
Change of state
(A) Substance X exists in solid state at
point 1, in liquid state at point 3 and
in gaseous state at point 5.
(B) QR represents latent heat of fusion,
while ST represents latent heat of
vaporisation
(C) At QR, matter exists both in solid and
liquid states, while at ST matter exists
both in liquid and gaseous states.
(D) All of these
A
Answers
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Answer:
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